YOU SAID:
I haven't slept for a whole fortnight.
INTO JAPANESE
私は2週間も寝ていません。
BACK INTO ENGLISH
I haven't slept for two weeks.
INTO JAPANESE
「ここ数週間は、眠れないし」
BACK INTO ENGLISH
I haven't slept for fucking weeks.
INTO JAPANESE
「ここ数週間は、眠れないし」
BACK INTO ENGLISH
I haven't slept for fucking weeks.
That didn't even make that much sense in English.